/*
 * Copyright (C) 2008 TranceCode Software
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 * 
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
 *
 * $Id$
 */
package org.trancecode.rdf;

import com.google.common.collect.Iterables;


/**
 * @author Herve Quiroz
 * @version $Revision: 3842 $
 */
public abstract class AbstractModel implements Model
{
	@Override
	public Iterable<Value> objects()
	{
		return Iterables.transform(triples(), TripleFunctions.object());
	}


	@Override
	public Iterable<UriReference> predicates()
	{
		return Iterables.transform(triples(), TripleFunctions.predicate());
	}


	@Override
	public Iterable<Reference> subjects()
	{
		return Iterables.transform(triples(), TripleFunctions.subject());
	}


	@Override
	public Triple addTriple(final Reference subject, final UriReference predicate, final Value object)
	{
		throw new UnsupportedOperationException();
	}


	@Override
	public Triple replaceTriple(
		final Reference subject, final UriReference predicate, final ValueFilter oldObject, final Value newObject)
	{
		throw new UnsupportedOperationException();
	}
}
